Established Illinois based commercial HVAC service company with a long operating history and strong relationships across multi location commercial customers. The business provides preventive maintenance, diagnostics, repair, and planned replacement services for rooftop units, boilers, furnaces, and split systems. Customers include national franchise operators such as Dunkin, Wingstop, and McAlister’s along with apartment buildings, retail centers, and other commercial properties. The company maintains detailed equipment service records and standardized maintenance procedures which support recurring service revenue and efficient technician routing. Revenue has grown steadily from approximately $1.53M in 2023 to $1.93M for 2025 with strong cash flow generation and normalized SDE exceeding $850K. The sale includes service vehicles, HVAC tools and equipment, and an established base of recurring commercial maintenance relationships. The owner is willing to support a structured transition to ensure continuity for customers and employees.